def _from_xml(self, datastring):
if datastring is None:
return None
plurals = set(self.metadata.get('plurals', {}))
try:
node = self._parseXML(datastring)
root_tag = self._get_key(node.tag)
# Deserialize link node was needed by unit test for verifying
# the request's response
links = self._get_links(root_tag, node)
result = self._from_xml_node(node, plurals)
# root_tag = constants.VIRTUAL_ROOT_KEY and links is not None
# is not possible because of the way data are serialized.
if root_tag == constants.VIRTUAL_ROOT_KEY:
return result
return dict({root_tag: result}, **links)
except Exception as e:
with excutils.save_and_reraise_exception():
parseError = False
# Python2.7
if (hasattr(etree, 'ParseError') and
isinstance(e, getattr(etree, 'ParseError'))):
parseError = True
# Python2.6
elif isinstance(e, expat.ExpatError):
parseError = True
if parseError:
msg = _("Cannot understand XML")
raise exception.MalformedRequestBody(reason=msg)
def _from_xml(self, datastring):
if datastring is None:
return None
plurals = set(self.metadata.get('plurals', {}))
try:
node = self._parseXML(datastring)
root_tag = self._get_key(node.tag)
# Deserialize link node was needed by unit test for verifying
# the request's response
links = self._get_links(root_tag, node)
result = self._from_xml_node(node, plurals)
# root_tag = constants.VIRTUAL_ROOT_KEY and links is not None
# is not possible because of the way data are serialized.
if root_tag == constants.VIRTUAL_ROOT_KEY:
return result
return dict({root_tag: result}, **links)
except Exception as e:
with excutils.save_and_reraise_exception():
parseError = False
# Python2.7
if (hasattr(etree, 'ParseError')
and isinstance(e, getattr(etree, 'ParseError'))):
parseError = True
# Python2.6
elif isinstance(e, expat.ExpatError):
parseError = True
if parseError:
msg = _("Cannot understand XML")
raise exception.MalformedRequestBody(reason=msg)
def run_vsctl(self, args, check_error=False):
full_args = ["sudo", "ovs-vsctl", "--timeout=%d" % self.vsctl_timeout] + args
try:
return ovs_utils.execute(full_args, root_helper=None)
except Exception as e:
with excutils.save_and_reraise_exception() as ctxt:
if not check_error:
ctxt.reraise = False
def run_vsctl(self, args, check_error=False):
full_args = ["sudo", "ovs-vsctl",
"--timeout=%d" % self.vsctl_timeout] + args
try:
return ovs_utils.execute(full_args, root_helper=None)
except Exception as e:
with excutils.save_and_reraise_exception() as ctxt:
if not check_error:
ctxt.reraise = False
def __init__(self, **kwargs):
try:
super(VNFSvcException, self).__init__(self.message % kwargs)
self.msg = self.message % kwargs
except Exception:
with excutils.save_and_reraise_exception() as ctxt:
if not self.use_fatal_exceptions():
ctxt.reraise = False
# at least get the core message out if something happened
super(VNFSvcException, self).__init__(self.message)
def __init__(self, **kwargs):
try:
super(VNFSvcException, self).__init__(self.message % kwargs)
self.msg = self.message % kwargs
except Exception:
with excutils.save_and_reraise_exception() as ctxt:
if not self.use_fatal_exceptions():
ctxt.reraise = False
# at least get the core message out if something happened
super(VNFSvcException, self).__init__(self.message)
def serve_wsgi(cls):
try:
service = cls.create()
service.start()
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception(_('Unrecoverable error: please check log '
'for details.'))
return service
def serve_wsgi(cls):
try:
service = cls.create()
service.start()
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception(
_('Unrecoverable error: please check log '
'for details.'))
return service
def remove_path_on_error(path, remove=delete_if_exists):
"""Protect code that wants to operate on PATH atomically.
Any exception will cause PATH to be removed.
:param path: File to work with
:param remove: Optional function to remove passed path
"""
try:
yield
except Exception:
with excutils.save_and_reraise_exception():
remove(path)
def deserialize_body(self, request, action):
try:
content_type = request.best_match_content_type()
except exception.InvalidContentType:
LOG.debug(_("Unrecognized Content-Type provided in request"))
return {}
if content_type is None:
LOG.debug(_("No Content-Type provided in request"))
return {}
if not len(request.body) > 0:
LOG.debug(_("Empty body provided in request"))
return {}
try:
deserializer = self.get_body_deserializer(content_type)
except exception.InvalidContentType:
with excutils.save_and_reraise_exception():
LOG.debug(_("Unable to deserialize body as provided "
"Content-Type"))
return deserializer.deserialize(request.body, action)
def deserialize_body(self, request, action):
try:
content_type = request.best_match_content_type()
except exception.InvalidContentType:
LOG.debug(_("Unrecognized Content-Type provided in request"))
return {}
if content_type is None:
LOG.debug(_("No Content-Type provided in request"))
return {}
if not len(request.body) > 0:
LOG.debug(_("Empty body provided in request"))
return {}
try:
deserializer = self.get_body_deserializer(content_type)
except exception.InvalidContentType:
with excutils.save_and_reraise_exception():
LOG.debug(
_("Unable to deserialize body as provided "
"Content-Type"))
return deserializer.deserialize(request.body, action)
def call(*args, **kwargs):
try:
return func(*args, **kwargs)
except Exception as e:
with excutils.save_and_reraise_exception():
self.logger(e)
def _get_socket(self, host, port, backlog):
bind_addr = (host, port)
try:
info = socket.getaddrinfo(bind_addr[0],
bind_addr[1],
socket.AF_UNSPEC,
socket.SOCK_STREAM)[0]
family = info[0]
bind_addr = info[-1]
except Exception:
LOG.exception(_("Unable to listen on %(host)s:%(port)s"),
{'host': host, 'port': port})
sys.exit(1)
if CONF.use_ssl:
if not os.path.exists(CONF.ssl_cert_file):
raise RuntimeError(_("Unable to find ssl_cert_file "
": %s") % CONF.ssl_cert_file)
# ssl_key_file is optional because the key may be embedded in the
# certificate file
if CONF.ssl_key_file and not os.path.exists(CONF.ssl_key_file):
raise RuntimeError(_("Unable to find "
"ssl_key_file : %s") % CONF.ssl_key_file)
# ssl_ca_file is optional
if CONF.ssl_ca_file and not os.path.exists(CONF.ssl_ca_file):
raise RuntimeError(_("Unable to find ssl_ca_file "
": %s") % CONF.ssl_ca_file)
def wrap_ssl(sock):
ssl_kwargs = {
'server_side': True,
'certfile': CONF.ssl_cert_file,
'keyfile': CONF.ssl_key_file,
'cert_reqs': ssl.CERT_NONE,
}
if CONF.ssl_ca_file:
ssl_kwargs['ca_certs'] = CONF.ssl_ca_file
ssl_kwargs['cert_reqs'] = ssl.CERT_REQUIRED
return ssl.wrap_socket(sock, **ssl_kwargs)
sock = None
retry_until = time.time() + CONF.retry_until_window
while not sock and time.time() < retry_until:
try:
sock = eventlet.listen(bind_addr,
backlog=backlog,
family=family)
if CONF.use_ssl:
sock = wrap_ssl(sock)
except socket.error as err:
with excutils.save_and_reraise_exception() as ctxt:
if err.errno == errno.EADDRINUSE:
ctxt.reraise = False
eventlet.sleep(0.1)
if not sock:
raise RuntimeError(_("Could not bind to %(host)s:%(port)s "
"after trying for %(time)d seconds") %
{'host': host,
'port': port,
'time': CONF.retry_until_window})
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
# This option isn't available in the OS X version of eventlet
if hasattr(socket, 'TCP_KEEPIDLE'):
sock.setsockopt(socket.IPPROTO_TCP,
socket.TCP_KEEPIDLE,
CONF.tcp_keepidle)
return sock
def call(*args, **kwargs):
try:
return func(*args, **kwargs)
except Exception as e:
with excutils.save_and_reraise_exception():
self.logger(e)
def _get_socket(self, host, port, backlog):
bind_addr = (host, port)
try:
info = socket.getaddrinfo(bind_addr[0], bind_addr[1],
socket.AF_UNSPEC, socket.SOCK_STREAM)[0]
family = info[0]
bind_addr = info[-1]
except Exception:
LOG.exception(_("Unable to listen on %(host)s:%(port)s"), {
'host': host,
'port': port
})
sys.exit(1)
if CONF.use_ssl:
if not os.path.exists(CONF.ssl_cert_file):
raise RuntimeError(
_("Unable to find ssl_cert_file "
": %s") % CONF.ssl_cert_file)
# ssl_key_file is optional because the key may be embedded in the
# certificate file
if CONF.ssl_key_file and not os.path.exists(CONF.ssl_key_file):
raise RuntimeError(
_("Unable to find "
"ssl_key_file : %s") % CONF.ssl_key_file)
# ssl_ca_file is optional
if CONF.ssl_ca_file and not os.path.exists(CONF.ssl_ca_file):
raise RuntimeError(
_("Unable to find ssl_ca_file "
": %s") % CONF.ssl_ca_file)
def wrap_ssl(sock):
ssl_kwargs = {
'server_side': True,
'certfile': CONF.ssl_cert_file,
'keyfile': CONF.ssl_key_file,
'cert_reqs': ssl.CERT_NONE,
}
if CONF.ssl_ca_file:
ssl_kwargs['ca_certs'] = CONF.ssl_ca_file
ssl_kwargs['cert_reqs'] = ssl.CERT_REQUIRED
return ssl.wrap_socket(sock, **ssl_kwargs)
sock = None
retry_until = time.time() + CONF.retry_until_window
while not sock and time.time() < retry_until:
try:
sock = eventlet.listen(bind_addr,
backlog=backlog,
family=family)
if CONF.use_ssl:
sock = wrap_ssl(sock)
except socket.error as err:
with excutils.save_and_reraise_exception() as ctxt:
if err.errno == errno.EADDRINUSE:
ctxt.reraise = False
eventlet.sleep(0.1)
if not sock:
raise RuntimeError(
_("Could not bind to %(host)s:%(port)s "
"after trying for %(time)d seconds") % {
'host': host,
'port': port,
'time': CONF.retry_until_window
})
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
# This option isn't available in the OS X version of eventlet
if hasattr(socket, 'TCP_KEEPIDLE'):
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE,
CONF.tcp_keepidle)
return sock
